diff --git a/game-add b/game-add
index 28a2de8..3d4d98c 100755
--- a/game-add
+++ b/game-add
@@ -112,8 +112,8 @@ function game_get_info {
     # Find the white and black players
     local line0=$(grep " ${players[0]} " $tour_info)
     local line1=$(grep " ${players[1]} " $tour_info)
-    [[ $line0 == $line1 ]] \
-        || die "No game between ${players[0]} and ${players[1]} found in ${tour_info}."
+    [[ -z $line0 || -z $line1 || $line0 != $line1 ]] \
+        && die "No game between ${players[0]} and ${players[1]} found in ${tour_info}."
     [[ $line0 =~ ^((${date_re})\ +([^\ ]+)\ +-\ +([^\ ]+))(.*)$ ]]
     white=${BASH_REMATCH[3]}
     black=${BASH_REMATCH[4]}